Zero Trust in Production: Why the Firewall Alone Is No Longer Enough
For decades, the security strategy in industry was clearly defined: A strong "moat" (the perimeter firewall) protects the internal machine network from the outside world. But in the connected Industry 4.0, this model is crumbling. Once malware—such as through an infected technician's laptop or a compromised remote maintenance interface—enters the internal network, it often has free rein. This is where the Zero Trust model comes in. The principle: "Trust no one, verify everyone." Learn how micro-segmentation within Kubernetes clusters prevents a small incident from becoming a fatal production halt. The problem: The risk of lateral movement In traditional, "flat" networks, compromised systems can communicate freely with other devices in the same segment. Hackers exploit this for so-called lateral movement: They jump from a less critical system (e.g., a display panel) to the central controls of the production line. **The dangers of flat network structures:**
